Pipe-coupling



W. H. HAMPSON.

PIPE COUPLING.

APPLICATION FILED AUG. 1. 1919.

Patented Nov. 30, 1920.

UNITED STATES PATENT OFFICE.

PIPE-COUPLING.

Application filed August 1, 1919.

To all whom it may concern.

Be it known that I, \V ILLIAM H. HAMP- SON, a citizen of the United States, residing at Belmont, in the county of Middlesex and State of Massachusetts, have, invented new and useful Improvements in Pipe Couplings, of which the following is a specification.

This invention relates to an improved cou pling for pipes and is particularly adapted for use inthe coupling of the air line hose between cars on railroad trains.

The object of the invention is to provide a simple and eflicient means for locking the two heads of a pipe coupling together in such a manner that they may be easily and automatically disengaged one from the other when the cars to which they are attached are uncoupled.

The invention consists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the claims thereof;

Referring to the drawings Figure 1 is a side elevation of a pipe coupling embodying my invention.

Fig. 2 is an enlarged side elevation of one of the coupling heads.

Fig. 3 is a sectional elevation taken on line 3-3 of Fig. 1.

Fig. 4 is a sectional elevation taken on line t4c of Fig. 1.

Fig. 5 is a side elevation of another coupling head.

Like numerals refer to like parts throughout the several views of the drawings.

The general style of coupling to which my improvement is particularly adapted and illustrated in the drawings and heroinafter described in the specification is well known to those skilled in the art and is similar to the style of coupling set forth in the patent to C. Forth, No. 1,035,564, to which for further detailed illustration reference may be had.

In the drawings 6 and 7 are the two coupling heads. Said coupling heads are provided with lateral ports 8 and 9, respectively, in alinement with each other and with gaskets 10 and 11, which, when theparts of the coupling are in operative position, are in engagement with each other.

i The heads 6 and? as illustrated are preferably counterparts of each other and when in o aeration are reversibly positioned rela tiveiy to other.

Specification of Letters Patent.

Patented Nov. 30, 1920.

Serial No. 314,612.

The head 6 is provided with a segmental flange 12 which is provided at one end thereof with a laterally extending rib l3. Diametrically opposed to the segmental flange 12 is another segmental flange 14 which has a laterally extending rib 15 concentric with the head 6 and extending across the entire length of the flange 14.

It will be seen that the flanges 12 and 14 are continuous and that the rib 13 is substantially shorter than the rib 15.

The head 7 has a segmental flange 16 thereon, from which projects laterally a rib 17 and diametrically opposed to the flange 16 is another segmental flange 18 which is provided with a rib 19eXtending through out the entire length of said flange 18. It will be seen that the rib 17 is substantially shorter than the rib 19.

When the parts are locked together in operative position as in Fig. 1, the center line- A of the head (Sis at an angle to the center line B of the head 7, and when in this position, as illustrated in Fig. 8, the rib 13 of the head. 6 is interlocked with therib 19 of the head 7 and the rib 17 of the head 7 is interlocked with the rib 15 of the head 6, and furthermore, the rib 13 engages the flange 18 and the rib 17 engages the flange 14.

When the heads 6 and 7 are rotated, either by hand or by a pull upon the hose caused by the cars being uncoupled and separating, so as to bring the center lines A and B substantially in alinement with each other, or parallel to each other, it will-be seen that the head 6 will rotate in the direction of the arrow at (Fig. 1) and that the head 7 will rotate inthe opposite direction, and when said heads have rotated a distance substan- I tially equal to or slightly greater than the length of the rib 18, the rib 13 will be out of engagement with the rib 19 and the rib 17 will be out of engagement with the rib 15, so that the parts are then free to separate upon a longitudinal pull being imparted thereto.

The general operation of the device is as follows: The heads are positioned with the center lines thereof in alinement or parallelism and with the gaskets 8 and 9 pressed together. Then the head 6 is rotated in the opposite direction to the arrow at and the head 7 is rotated in the direction of the arrow a (Fig. 1), and the parts then assume the relative positions illustrated in Fig. 1.

. i, (ll 6 il hen the cars uncoupled the pull upon the hose will automatically cause the heads 6 and 7 to rotate upon each other, the head 6 in the direction of the arrow a and the head "4' in the opposite direction to that of the arrow a, and as soon as the ribs 13 and 17 have passed out of engagement with the ribs 19 and 15 the two heads (3 and T will become disconnected.

Having thus described my invention, what I claim and desire to secure by Letters lratent is y 1. A pipe coupling having, in combination, a pair of oppositely disposed heads rotatably mounted upon each other, each of said heads having a lateral port opening in alineinent with a lateral port opening on the other head, a continuous segmental flange on diametrically opposite sides of each of said heads, each of said flanges having a laterally extending rib thereon, the ribs on the flanges of one head being adapted to interlock with the ribs on the flanges adjacent therec on the other head, one rib oi each pair of said inter-- locking ribs being shorter than the other rib of said pair and substantially shorter than its respective flange, whereby when one of said heads is rotated upon the other for a portion of the length of said longer ribs said heads will become unlocked from each other.

2. A pipe coupling having, in combination, a pair of oppositely disposed heads rotatably mounted upon each other, said. heads being counterparts of each other and reversibly positioned relatively to each other, each of said heads having a lateral port opening in alinement with a lateral pert opening on the other head, a continuous segmental lien on diametrically opposite sides oi each or said heads, each of said flanges having a laterally extending rib thereon, the ribs on the flanges of one head being adapted to interlock with the ribs on the flanges ad.- jacent thereto on the other head, one rib oi: each pair of said interlocking ribs being shorter than the other rio of said pair and substantially shorter than its respectire flange, whereby when one of said heads is retated upon the other for portion of the length of said longer ribs said heads will hccome unlocked from each other.

3. A pipe coupling having, in combination, a pair of oppositely disposed heads rotatably mounted upon each other, each of said heads having a lateral port opening in alinement with a lateral port opening on the other head, a continuous segmental flange on diametrically opposite sides of each ot said heads, each of said flanges having a laterally extending rib thereon, the ribs on the flanges of one head being adapted to interlock with the ribs on the flanges adjacent thereto on the other head, one of said ribs on one he d being shorter than the other rib on said head and substantially shorter than its respective flange, the shorter rib on each head interlocking with the long rib or the other head, whereby when one of said heads is rotated upon the other for a portion of the length of said longer ribs said heads will become unlocked from each other.

4. A pipe coupling having, in conibir '1. tion, a pair of oppositely disposed heads ro tatably mounted upon each other, ach oi: said heads having a lateral port opening in alinement with a lateral port opening on the other head, a continuous segmental i'lai on diametrically opposite sides of each or said heads, each of said flanges having a laterally extending rib thereon, the ribs on the flanges of one head being adapted to interlock with the ribs on the flanges ,adjacent thereto on the other head, one of said ribs on one head being shorter than the other rib on said head and substantially shorter than. respective flange, the shorter rib on said head interlocking with the long rib of the other head, said shorter ribs being located atthe same ends of their respective flanges, whereby when one of said heads is rotated upon the other for a portion of the length of said longer ribs said heads will become unlocked from each other.

5. A pipe coupling having, in combination, a pair of oppositely disposed heads rotatably mounted upon each other, each of said heads having a lateral port opening in alineinent with a lateral port opening on the other head, a continuous segmental flange on diametrically opposite sides 01" each of said heads, each of said flanges having a laterally extending rib thereon, the ribs on the flanges of one head being adapted to interlock with the ribs on the flanges adjacent thereto on the other head, one rib of each pair of said interlocking ribs being Sher than the other rib of said pair and enlist: tially shorter than its .respec ire ii.- adapted to engage said flange, when one of said heads is'rotated upon the other for a portion oi? the length of said longer ribs said heads will become uulecke'i iroin each other.

In testimony whereof I have hereunto set my hand.

WILLIAM H. HAMPSON. I 

